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- <?php
- namespace Aws\S3\UseArnRegion;
- use Aws\AbstractConfigurationProvider;
- use Aws\CacheInterface;
- use Aws\ConfigurationProviderInterface;
- use Aws\S3\UseArnRegion\Exception\ConfigurationException;
- use GuzzleHttp\Promise;
- class ConfigurationProvider extends AbstractConfigurationProvider
- implements ConfigurationProviderInterface
- {
- const ENV_USE_ARN_REGION = 'AWS_S3_USE_ARN_REGION';
- const INI_USE_ARN_REGION = 's3_use_arn_region';
- const DEFAULT_USE_ARN_REGION = true;
- public static $cacheKey = 'aws_s3_use_arn_region_config';
- protected static $interfaceClass = ConfigurationInterface::class;
- protected static $exceptionClass = ConfigurationException::class;
-
- public static function defaultProvider(array $config = [])
- {
- $configProviders = [self::env()];
- if (
- !isset($config['use_aws_shared_config_files'])
- || $config['use_aws_shared_config_files'] != false
- ) {
- $configProviders[] = self::ini();
- }
- $configProviders[] = self::fallback();
- $memo = self::memoize(
- call_user_func_array([ConfigurationProvider::class, 'chain'], $configProviders)
- );
- if (isset($config['use_arn_region'])
- && $config['use_arn_region'] instanceof CacheInterface
- ) {
- return self::cache($memo, $config['use_arn_region'], self::$cacheKey);
- }
- return $memo;
- }
-
- public static function env()
- {
- return function () {
-
- $useArnRegion = getenv(self::ENV_USE_ARN_REGION);
- if (!empty($useArnRegion)) {
- return Promise\Create::promiseFor(
- new Configuration($useArnRegion)
- );
- }
- return self::reject('Could not find environment variable config'
- . ' in ' . self::ENV_USE_ARN_REGION);
- };
- }
-
- public static function ini($profile = null, $filename = null)
- {
- $filename = $filename ?: (self::getDefaultConfigFilename());
- $profile = $profile ?: (getenv(self::ENV_PROFILE) ?: 'default');
- return function () use ($profile, $filename) {
- if (!@is_readable($filename)) {
- return self::reject("Cannot read configuration from $filename");
- }
-
- $data = \Aws\parse_ini_file($filename, true, INI_SCANNER_NORMAL);
- if ($data === false) {
- return self::reject("Invalid config file: $filename");
- }
- if (!isset($data[$profile])) {
- return self::reject("'$profile' not found in config file");
- }
- if (!isset($data[$profile][self::INI_USE_ARN_REGION])) {
- return self::reject("Required S3 Use Arn Region config values
- not present in INI profile '{$profile}' ({$filename})");
- }
-
- if ($data[$profile][self::INI_USE_ARN_REGION] === "") {
- $data[$profile][self::INI_USE_ARN_REGION] = false;
- }
- return Promise\Create::promiseFor(
- new Configuration($data[$profile][self::INI_USE_ARN_REGION])
- );
- };
- }
-
- public static function fallback()
- {
- return function () {
- return Promise\Create::promiseFor(
- new Configuration(self::DEFAULT_USE_ARN_REGION)
- );
- };
- }
- }
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